Note 2: Investments in Securities: Schedule of Available-for-sale Securities Reconciliation (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Available-for-sale Securities, Amortized Cost Basis	$ 253,575
Available for Sale Securities Fair Value	262,856
US Government Agencies Debt Securities
Available-for-sale Securities, Amortized Cost Basis	20,000	$ 20,000
Available For Sale Securities Gross Unrealized Losses	219	486
Available for Sale Securities Fair Value	19,781	19,514
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises
Available-for-sale Securities, Amortized Cost Basis	159,777	254,294
Available for sale Securities, Gross Unrealized Gain	2,038	4,325
Available For Sale Securities Gross Unrealized Losses	601	821
Available for Sale Securities Fair Value	161,214	257,798
US States and Political Subdivisions Debt Securities
Available-for-sale Securities, Amortized Cost Basis	72,951	79,237
Available for sale Securities, Gross Unrealized Gain	5,081	5,810
Available For Sale Securities Gross Unrealized Losses	1	7
Available for Sale Securities Fair Value	78,031	85,040
Other securities
Available-for-sale Securities, Amortized Cost Basis	847	847
Available for sale Securities, Gross Unrealized Gain	2,983	2,307
Available for Sale Securities Fair Value	3,830	3,154
Available-for-sale Securities
Available-for-sale Securities, Amortized Cost Basis	253,575	354,378
Available for sale Securities, Gross Unrealized Gain	10,102	12,442
Available For Sale Securities Gross Unrealized Losses	821	1,314
Available for Sale Securities Fair Value	$ 262,856	$ 365,506